NPIMap

Individual provider Active NPI

Isabel Yelsa, PA-C

  • Physician Assistant
  • Philomath, OR
National Provider Identifier
1285435677
Registry record updated Oct 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA226962 Issued in OR
Practice address
500 Main St
Philomath, OR 97370-9707
Phone
(541) 754-1272
NPI assigned
Mar 21, 2025
Last updated
Oct 29, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 29, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA226962 OR Primary

Addresses

Primary practice location

500 Main St
Philomath, OR 97370-9707

Mailing address

444 NW Elks Dr
Corvallis, OR 97330-3758
Phone (541) 754-1150

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251104001392 OR Practitioner - Physician Assistant 3678063179 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The Corvallis Clinic P CGroup PAC ID 1456244540, 128 clinicians

Practice addresses (Care Compare)

500 Main St
Philomath, OR 97370-9707
Phone (541) 750-6208

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA226962ORMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
The Corvallis Clinic P C CurrentSince Dec 15, 2025 Accepting new patients
The Corvallis Clinic P C CurrentSince Dec 15, 2025 Accepting new patients

Locations

3680 NW Samaritan Dr
Corvallis, OR 97330
Phone (541) 754-1282

444 NW Elks Dr
Corvallis, OR 97330
Phone (541) 754-1256

500 Main St
Philomath, OR 97370
Phone (541) 609-4071

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/14349/brand/4/csg/42/fhir/r4
  • Direct secure messaging: isabel.yelsa.1@14349.direct.athenahealth.com

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 21

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 21

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1742515200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761696000000",
    "number": "1285435677",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "444 NW ELKS DR",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973303758",
            "telephone_number": "541-754-1150"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 MAIN ST",
            "city": "PHILOMATH",
            "state": "OR",
            "postal_code": "973709707",
            "telephone_number": "541-754-1272"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YELSA",
        "first_name": "ISABEL",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-03-21",
        "last_updated": "2025-10-29",
        "certification_date": "2025-10-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "OR",
            "license": "PA226962",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philomath, OR

Sources for this page

Verify at the official NPI Registry.